Part A Rank the following metals in order of stability. Rank from highest to low

Question

Part A

Rank the following metals in order of stability.

Rank from highest to lowest stability. To rank items as equivalent, overlap them.

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Silver

Gold

Iron

Magnesium

Metallurgy is the science and technology of extracting metals from their ores. Refer to this table of standard potentials, E, when answering the questions. Reduction half-reaction E (V) Au+(aq)+eAu(s) 1.83 Hg2+(aq)+2eHg(l) 0.85 Ag+(aq)+eAg(s) 0.80 Cu2+(aq)+2eCu(s) 0.34 Fe2+(aq)+2eFe(s) 0.45 Zn2+(aq)+2eZn(s) 0.76 Mg2+(aq)+2eMg(s) 2.37

Part A

Rank the following metals in order of stability.

Rank from highest to lowest stability. To rank items as equivalent, overlap them.

Help

Reset

Silver

Gold

Iron

Magnesium

Explanation / Answer

The one with greater Eo will be reduced easily

hence the one with greater Eo will not be stable in ionic form but will be stable in solid form.

So, greater the value of Eo, greater will be the stability of Eo

Order of Eo is:

gold > silver > iron > magnesium

So, stability order is:

Highest stability

gold

silver

iron

magnesium

Lowest stability

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